Stem Cells

Stem cells are

• cells that grow uncontrollably
• undifferentiated and can be any type of cell
• never go through cell division
• only found in embryos

Stem cells can be obtained from

• embryos
• some adult tissues
• umbilical cord blood
• all of the above

Which best explains why muscle cells are different from blood cells?

• Muscle cells are produced by the brain, but blood cells are produced by the heart. 
• Different genes are activated in muscle cells than in blood cells. 
• Muscles cells experience different environmental influences than blood cells. 
• A mutation occurs during the development of muscle cells but not in blood cells. 

What is the difference between embryonic stem cells and adult stem cells?

• Embryonic stem cells can differentiate into more cell types than adult stem cells
• Adult stem cells are pluripotent, just like embryonic stem cells
• Adult stem cells can differentiate into more cell types than embryonic stem cells
• Adult stem cells grow bigger than embryonic stem cells

Which is true about Adult Stem Cells.

• They no longer do mitosis, their cell type is set and can not change
• They are limited to the type of  cell they can become.
• They can become any cell type in the body
• They are found in embryos

Stem cell research is controversial because in involves?

• social issues
• ethical issues
• educational issues
• economical issues

Why might stem cell research lead to a cure for diabetes?

• Stem cells can be used to grow pancreas cells that produce insulin.
• Stem cells can create babies that have normal functioning pancreases.

Medical research involving stem cells is important for ...

• to test the effectiveness of new drugs

• the generation of cells and tissues that can be used in cell based therapies

• to understand the consequences of turning genes off and on

• All of the above

How are Induced Pluripotent Stem (iPS) cells created?

• Reprograming any cell with three genes

• These don't exist

• Reprogramming skin or fat cells with four genes

• Cells are taken from a blastocyst

Which type of stem cell can grow into any other type?

• somatic

• multipotent

• totipotent

• pluripotent